[deliverable/linux.git] / drivers / media / i2c / saa7110.c

/*
 * saa7110 - Philips SAA7110(A) video decoder driver
 *
 * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
 *
 * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
 *    - some corrections for Pinnacle Systems Inc. DC10plus card.
 *
 * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
 *    - moved over to linux>=2.4.x i2c protocol (1/1/2003)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/wait.h>
#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-ctrls.h>

MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
MODULE_AUTHOR("Pauline Middelink");
MODULE_LICENSE("GPL");


static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");

#define SAA7110_MAX_INPUT	9	/* 6 CVBS, 3 SVHS */
#define SAA7110_MAX_OUTPUT	1	/* 1 YUV */

#define SAA7110_NR_REG		0x35

struct saa7110 {
	struct v4l2_subdev sd;
	struct v4l2_ctrl_handler hdl;
	u8 reg[SAA7110_NR_REG];

	v4l2_std_id norm;
	int input;
	int enable;

	wait_queue_head_t wq;
};

static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd)
{
	return container_of(sd, struct saa7110, sd);
}

static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
	return &container_of(ctrl->handler, struct saa7110, hdl)->sd;
}

/* ----------------------------------------------------------------------- */
/* I2C support functions						   */
/* ----------------------------------------------------------------------- */

static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct saa7110 *decoder = to_saa7110(sd);

	decoder->reg[reg] = value;
	return i2c_smbus_write_byte_data(client, reg, value);
}

static int saa7110_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct saa7110 *decoder = to_saa7110(sd);
	int ret = -1;
	u8 reg = *data;		/* first register to write to */

	/* Sanity check */
	if (reg + (len - 1) > SAA7110_NR_REG)
		return ret;

	/* the saa7110 has an autoincrement function, use it if
	 * the adapter understands raw I2C */
	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
		ret = i2c_master_send(client, data, len);

		/* Cache the written data */
		memcpy(decoder->reg + reg, data + 1, len - 1);
	} else {
		for (++data, --len; len; len--) {
			ret = saa7110_write(sd, reg++, *data++);
			if (ret < 0)
				break;
		}
	}

	return ret;
}

static inline int saa7110_read(struct v4l2_subdev *sd)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return i2c_smbus_read_byte(client);
}

/* ----------------------------------------------------------------------- */
/* SAA7110 functions							   */
/* ----------------------------------------------------------------------- */

#define FRESP_06H_COMPST 0x03	/*0x13*/
#define FRESP_06H_SVIDEO 0x83	/*0xC0*/


static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
{
	static const unsigned char modes[9][8] = {
		/* mode 0 */
		{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
			      0x44, 0x75, 0x16},
		/* mode 1 */
		{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
			      0x44, 0x75, 0x16},
		/* mode 2 */
		{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
			      0x60, 0xB5, 0x05},
		/* mode 3 */
		{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
			      0x60, 0xB5, 0x05},
		/* mode 4 */
		{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
			      0x60, 0xB5, 0x03},
		/* mode 5 */
		{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
			      0x60, 0xB5, 0x03},
		/* mode 6 */
		{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
			      0x44, 0x75, 0x12},
		/* mode 7 */
		{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
			      0x60, 0xB5, 0x14},
		/* mode 8 */
		{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
			      0x44, 0x75, 0x21}
	};
	struct saa7110 *decoder = to_saa7110(sd);
	const unsigned char *ptr = modes[chan];

	saa7110_write(sd, 0x06, ptr[0]);	/* Luminance control    */
	saa7110_write(sd, 0x20, ptr[1]);	/* Analog Control #1    */
	saa7110_write(sd, 0x21, ptr[2]);	/* Analog Control #2    */
	saa7110_write(sd, 0x22, ptr[3]);	/* Mixer Control #1     */
	saa7110_write(sd, 0x2C, ptr[4]);	/* Mixer Control #2     */
	saa7110_write(sd, 0x30, ptr[5]);	/* ADCs gain control    */
	saa7110_write(sd, 0x31, ptr[6]);	/* Mixer Control #3     */
	saa7110_write(sd, 0x21, ptr[7]);	/* Analog Control #2    */
	decoder->input = chan;

	return 0;
}

static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
};

static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
{
	DEFINE_WAIT(wait);
	struct saa7110 *decoder = to_saa7110(sd);
	int status;

	/* mode changed, start automatic detection */
	saa7110_write_block(sd, initseq, sizeof(initseq));
	saa7110_selmux(sd, decoder->input);
	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
	schedule_timeout(msecs_to_jiffies(250));
	finish_wait(&decoder->wq, &wait);
	status = saa7110_read(sd);
	if (status & 0x40) {
		v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
		return decoder->norm;	/* no change*/
	}
	if ((status & 3) == 0) {
		saa7110_write(sd, 0x06, 0x83);
		if (status & 0x20) {
			v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
			/*saa7110_write(sd,0x2E,0x81);*/
			return V4L2_STD_NTSC;
		}
		v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
		/*saa7110_write(sd,0x2E,0x9A);*/
		return V4L2_STD_PAL;
	}
	/*saa7110_write(sd,0x06,0x03);*/
	if (status & 0x20) {	/* 60Hz */
		v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
		saa7110_write(sd, 0x0D, 0x86);
		saa7110_write(sd, 0x0F, 0x50);
		saa7110_write(sd, 0x11, 0x2C);
		/*saa7110_write(sd,0x2E,0x81);*/
		return V4L2_STD_NTSC;
	}

	/* 50Hz -> PAL/SECAM */
	saa7110_write(sd, 0x0D, 0x86);
	saa7110_write(sd, 0x0F, 0x10);
	saa7110_write(sd, 0x11, 0x59);
	/*saa7110_write(sd,0x2E,0x9A);*/

	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
	schedule_timeout(msecs_to_jiffies(250));
	finish_wait(&decoder->wq, &wait);

	status = saa7110_read(sd);
	if ((status & 0x03) == 0x01) {
		v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
		saa7110_write(sd, 0x0D, 0x87);
		return V4L2_STD_SECAM;
	}
	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
	return V4L2_STD_PAL;
}

static int saa7110_g_input_status(struct v4l2_subdev *sd, u32 *pstatus)
{
	struct saa7110 *decoder = to_saa7110(sd);
	int res = V4L2_IN_ST_NO_SIGNAL;
	int status = saa7110_read(sd);

	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
		       status, (unsigned long long)decoder->norm);
	if (!(status & 0x40))
		res = 0;
	if (!(status & 0x03))
		res |= V4L2_IN_ST_NO_COLOR;

	*pstatus = res;
	return 0;
}

static int saa7110_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
{
	*(v4l2_std_id *)std = determine_norm(sd);
	return 0;
}

static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct saa7110 *decoder = to_saa7110(sd);

	if (decoder->norm != std) {
		decoder->norm = std;
		/*saa7110_write(sd, 0x06, 0x03);*/
		if (std & V4L2_STD_NTSC) {
			saa7110_write(sd, 0x0D, 0x86);
			saa7110_write(sd, 0x0F, 0x50);
			saa7110_write(sd, 0x11, 0x2C);
			/*saa7110_write(sd, 0x2E, 0x81);*/
			v4l2_dbg(1, debug, sd, "switched to NTSC\n");
		} else if (std & V4L2_STD_PAL) {
			saa7110_write(sd, 0x0D, 0x86);
			saa7110_write(sd, 0x0F, 0x10);
			saa7110_write(sd, 0x11, 0x59);
			/*saa7110_write(sd, 0x2E, 0x9A);*/
			v4l2_dbg(1, debug, sd, "switched to PAL\n");
		} else if (std & V4L2_STD_SECAM) {
			saa7110_write(sd, 0x0D, 0x87);
			saa7110_write(sd, 0x0F, 0x10);
			saa7110_write(sd, 0x11, 0x59);
			/*saa7110_write(sd, 0x2E, 0x9A);*/
			v4l2_dbg(1, debug, sd, "switched to SECAM\n");
		} else {
			return -EINVAL;
		}
	}
	return 0;
}

static int saa7110_s_routing(struct v4l2_subdev *sd,
			     u32 input, u32 output, u32 config)
{
	struct saa7110 *decoder = to_saa7110(sd);

	if (input >= SAA7110_MAX_INPUT) {
		v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
		return -EINVAL;
	}
	if (decoder->input != input) {
		saa7110_selmux(sd, input);
		v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
	}
	return 0;
}

static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
{
	struct saa7110 *decoder = to_saa7110(sd);

	if (decoder->enable != enable) {
		decoder->enable = enable;
		saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
		v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
	}
	return 0;
}

static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct v4l2_subdev *sd = to_sd(ctrl);

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		saa7110_write(sd, 0x19, ctrl->val);
		break;
	case V4L2_CID_CONTRAST:
		saa7110_write(sd, 0x13, ctrl->val);
		break;
	case V4L2_CID_SATURATION:
		saa7110_write(sd, 0x12, ctrl->val);
		break;
	case V4L2_CID_HUE:
		saa7110_write(sd, 0x07, ctrl->val);
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

static int saa7110_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0);
}

/* ----------------------------------------------------------------------- */

static const struct v4l2_ctrl_ops saa7110_ctrl_ops = {
	.s_ctrl = saa7110_s_ctrl,
};

static const struct v4l2_subdev_core_ops saa7110_core_ops = {
	.g_chip_ident = saa7110_g_chip_ident,
	.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
	.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
	.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
	.g_ctrl = v4l2_subdev_g_ctrl,
	.s_ctrl = v4l2_subdev_s_ctrl,
	.queryctrl = v4l2_subdev_queryctrl,
	.querymenu = v4l2_subdev_querymenu,
	.s_std = saa7110_s_std,
};

static const struct v4l2_subdev_video_ops saa7110_video_ops = {
	.s_routing = saa7110_s_routing,
	.s_stream = saa7110_s_stream,
	.querystd = saa7110_querystd,
	.g_input_status = saa7110_g_input_status,
};

static const struct v4l2_subdev_ops saa7110_ops = {
	.core = &saa7110_core_ops,
	.video = &saa7110_video_ops,
};

/* ----------------------------------------------------------------------- */

static int saa7110_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct saa7110 *decoder;
	struct v4l2_subdev *sd;
	int rv;

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(client->adapter,
		I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
		return -ENODEV;

	v4l_info(client, "chip found @ 0x%x (%s)\n",
			client->addr << 1, client->adapter->name);

	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
	if (!decoder)
		return -ENOMEM;
	sd = &decoder->sd;
	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
	decoder->norm = V4L2_STD_PAL;
	decoder->input = 0;
	decoder->enable = 1;
	v4l2_ctrl_handler_init(&decoder->hdl, 2);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_CONTRAST, 0, 127, 1, 64);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_SATURATION, 0, 127, 1, 64);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_HUE, -128, 127, 1, 0);
	sd->ctrl_handler = &decoder->hdl;
	if (decoder->hdl.error) {
		int err = decoder->hdl.error;

		v4l2_ctrl_handler_free(&decoder->hdl);
		kfree(decoder);
		return err;
	}
	v4l2_ctrl_handler_setup(&decoder->hdl);

	init_waitqueue_head(&decoder->wq);

	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
	if (rv < 0) {
		v4l2_dbg(1, debug, sd, "init status %d\n", rv);
	} else {
		int ver, status;
		saa7110_write(sd, 0x21, 0x10);
		saa7110_write(sd, 0x0e, 0x18);
		saa7110_write(sd, 0x0D, 0x04);
		ver = saa7110_read(sd);
		saa7110_write(sd, 0x0D, 0x06);
		/*mdelay(150);*/
		status = saa7110_read(sd);
		v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
			       ver, status);
		saa7110_write(sd, 0x0D, 0x86);
		saa7110_write(sd, 0x0F, 0x10);
		saa7110_write(sd, 0x11, 0x59);
		/*saa7110_write(sd, 0x2E, 0x9A);*/
	}

	/*saa7110_selmux(sd,0);*/
	/*determine_norm(sd);*/
	/* setup and implicit mode 0 select has been performed */

	return 0;
}

static int saa7110_remove(struct i2c_client *client)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	struct saa7110 *decoder = to_saa7110(sd);

	v4l2_device_unregister_subdev(sd);
	v4l2_ctrl_handler_free(&decoder->hdl);
	kfree(decoder);
	return 0;
}

/* ----------------------------------------------------------------------- */

static const struct i2c_device_id saa7110_id[] = {
	{ "saa7110", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, saa7110_id);

static struct i2c_driver saa7110_driver = {
	.driver = {
		.owner	= THIS_MODULE,
		.name	= "saa7110",
	},
	.probe		= saa7110_probe,
	.remove		= saa7110_remove,
	.id_table	= saa7110_id,
};

module_i2c_driver(saa7110_driver);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* saa7110 - Philips SAA7110(A) video decoder driver
	3	*
	4	* Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
	5	*
	6	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	7	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	8	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	9	*
	10	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	11	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
	23	* You should have received a copy of the GNU General Public License
	24	* along with this program; if not, write to the Free Software
	25	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	26	*/
	27
	28	#include <linux/module.h>
	29	#include <linux/init.h>
	30	#include <linux/types.h>
	31	#include <linux/delay.h>
	32	#include <linux/slab.h>
	33	#include <linux/wait.h>
1da177e4	34	#include <asm/uaccess.h>
85ede69f	35	#include <linux/i2c.h>
e7946844 HV	36	#include <linux/videodev2.h>
	37	#include <media/v4l2-device.h>
	38	#include <media/v4l2-chip-ident.h>
4744ebf6	39	#include <media/v4l2-ctrls.h>
1da177e4 LT	40
	41	MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
	42	MODULE_AUTHOR("Pauline Middelink");
	43	MODULE_LICENSE("GPL");
	44
e7946844	45
ff699e6b	46	static int debug;
1da177e4 LT	47	module_param(debug, int, 0);
	48	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	49
1da177e4	50	#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
8182ff69	51	#define SAA7110_MAX_OUTPUT 1 /* 1 YUV */
1da177e4	52
1da177e4 LT	53	#define SAA7110_NR_REG 0x35
	54
	55	struct saa7110 {
e7946844	56	struct v4l2_subdev sd;
4744ebf6	57	struct v4l2_ctrl_handler hdl;
1da177e4 LT	58	u8 reg[SAA7110_NR_REG];
1da177e4 LT	59
107063c6	60	v4l2_std_id norm;
1da177e4 LT	61	int input;
1da177e4 LT	62	int enable;
1da177e4 LT	63
	64	wait_queue_head_t wq;
	65	};
	66
e7946844 HV	67	static inline struct saa7110 to_saa7110(struct v4l2_subdev sd)
	68	{
	69	return container_of(sd, struct saa7110, sd);
	70	}
	71
4744ebf6 HV	72	static inline struct v4l2_subdev to_sd(struct v4l2_ctrl ctrl)
	73	{
	74	return &container_of(ctrl->handler, struct saa7110, hdl)->sd;
	75	}
	76
1da177e4 LT	77	/* ----------------------------------------------------------------------- */
	78	/* I2C support functions */
	79	/* ----------------------------------------------------------------------- */
	80
e7946844	81	static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	82	{
e7946844 HV	83	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	84	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	85
	86	decoder->reg[reg] = value;
	87	return i2c_smbus_write_byte_data(client, reg, value);
	88	}
	89
e7946844	90	static int saa7110_write_block(struct v4l2_subdev sd, const u8 data, unsigned int len)
1da177e4	91	{
e7946844 HV	92	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	93	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	94	int ret = -1;
	95	u8 reg = data; / first register to write to */
	96
	97	/* Sanity check */
	98	if (reg + (len - 1) > SAA7110_NR_REG)
	99	return ret;
	100
	101	/* the saa7110 has an autoincrement function, use it if
	102	* the adapter understands raw I2C */
	103	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
9aa45e34	104	ret = i2c_master_send(client, data, len);
1da177e4 LT	105
	106	/* Cache the written data */
	107	memcpy(decoder->reg + reg, data + 1, len - 1);
	108	} else {
	109	for (++data, --len; len; len--) {
e7946844	110	ret = saa7110_write(sd, reg++, *data++);
85ede69f	111	if (ret < 0)
1da177e4 LT	112	break;
	113	}
	114	}
	115
	116	return ret;
	117	}
	118
e7946844	119	static inline int saa7110_read(struct v4l2_subdev *sd)
1da177e4	120	{
e7946844 HV	121	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	122
1da177e4 LT	123	return i2c_smbus_read_byte(client);
	124	}
	125
	126	/* ----------------------------------------------------------------------- */
	127	/* SAA7110 functions */
	128	/* ----------------------------------------------------------------------- */
	129
e7946844 HV	130	#define FRESP_06H_COMPST 0x03 /0x13/
e7946844 HV	131	#define FRESP_06H_SVIDEO 0x83 /0xC0/
1da177e4 LT	132
1da177e4 LT	133
e7946844	134	static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
1da177e4 LT	135	{
	136	static const unsigned char modes[9][8] = {
	137	/* mode 0 */
	138	{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
	139	0x44, 0x75, 0x16},
	140	/* mode 1 */
	141	{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
	142	0x44, 0x75, 0x16},
	143	/* mode 2 */
	144	{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
	145	0x60, 0xB5, 0x05},
	146	/* mode 3 */
	147	{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
	148	0x60, 0xB5, 0x05},
	149	/* mode 4 */
	150	{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
	151	0x60, 0xB5, 0x03},
	152	/* mode 5 */
	153	{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
	154	0x60, 0xB5, 0x03},
	155	/* mode 6 */
	156	{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
	157	0x44, 0x75, 0x12},
	158	/* mode 7 */
	159	{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
	160	0x60, 0xB5, 0x14},
	161	/* mode 8 */
	162	{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
	163	0x44, 0x75, 0x21}
	164	};
e7946844	165	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	166	const unsigned char *ptr = modes[chan];
1da177e4 LT	167
e7946844 HV	168	saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */
	169	saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */
	170	saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */
	171	saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */
	172	saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */
	173	saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */
	174	saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */
	175	saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */
1da177e4 LT	176	decoder->input = chan;
	177
	178	return 0;
	179	}
	180
	181	static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	182	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	183	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	184	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	185	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	186	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	187	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	188	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
	189	};
	190
e7946844	191	static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
1da177e4 LT	192	{
1da177e4 LT	193	DEFINE_WAIT(wait);
e7946844	194	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	195	int status;
	196
	197	/* mode changed, start automatic detection */
e7946844 HV	198	saa7110_write_block(sd, initseq, sizeof(initseq));
e7946844 HV	199	saa7110_selmux(sd, decoder->input);
1da177e4	200	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	201	schedule_timeout(msecs_to_jiffies(250));
1da177e4	202	finish_wait(&decoder->wq, &wait);
e7946844	203	status = saa7110_read(sd);
1da177e4	204	if (status & 0x40) {
e7946844 HV	205	v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
e7946844 HV	206	return decoder->norm; /* no change*/
1da177e4 LT	207	}
1da177e4 LT	208	if ((status & 3) == 0) {
e7946844	209	saa7110_write(sd, 0x06, 0x83);
1da177e4	210	if (status & 0x20) {
e7946844 HV	211	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
e7946844 HV	212	/saa7110_write(sd,0x2E,0x81);/
107063c6	213	return V4L2_STD_NTSC;
1da177e4	214	}
e7946844 HV	215	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
e7946844 HV	216	/saa7110_write(sd,0x2E,0x9A);/
107063c6	217	return V4L2_STD_PAL;
1da177e4	218	}
e7946844	219	/saa7110_write(sd,0x06,0x03);/
1da177e4	220	if (status & 0x20) { /* 60Hz */
e7946844 HV	221	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
	222	saa7110_write(sd, 0x0D, 0x86);
	223	saa7110_write(sd, 0x0F, 0x50);
	224	saa7110_write(sd, 0x11, 0x2C);
	225	/saa7110_write(sd,0x2E,0x81);/
107063c6	226	return V4L2_STD_NTSC;
1da177e4 LT	227	}
	228
	229	/* 50Hz -> PAL/SECAM */
e7946844 HV	230	saa7110_write(sd, 0x0D, 0x86);
	231	saa7110_write(sd, 0x0F, 0x10);
	232	saa7110_write(sd, 0x11, 0x59);
	233	/saa7110_write(sd,0x2E,0x9A);/
1da177e4 LT	234
1da177e4 LT	235	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	236	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	237	finish_wait(&decoder->wq, &wait);
1da177e4 LT	238
e7946844	239	status = saa7110_read(sd);
1da177e4	240	if ((status & 0x03) == 0x01) {
e7946844 HV	241	v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
e7946844 HV	242	saa7110_write(sd, 0x0D, 0x87);
107063c6	243	return V4L2_STD_SECAM;
1da177e4	244	}
e7946844	245	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
107063c6	246	return V4L2_STD_PAL;
1da177e4 LT	247	}
1da177e4 LT	248
e7946844	249	static int saa7110_g_input_status(struct v4l2_subdev sd, u32 pstatus)
1da177e4	250	{
e7946844 HV	251	struct saa7110 *decoder = to_saa7110(sd);
	252	int res = V4L2_IN_ST_NO_SIGNAL;
	253	int status = saa7110_read(sd);
	254
	255	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
cc5cef8e	256	status, (unsigned long long)decoder->norm);
e7946844 HV	257	if (!(status & 0x40))
	258	res = 0;
	259	if (!(status & 0x03))
	260	res \|= V4L2_IN_ST_NO_COLOR;
	261
	262	*pstatus = res;
	263	return 0;
	264	}
1da177e4	265
e7946844 HV	266	static int saa7110_querystd(struct v4l2_subdev sd, v4l2_std_id std)
	267	{
	268	(v4l2_std_id )std = determine_norm(sd);
	269	return 0;
	270	}
1da177e4	271
e7946844 HV	272	static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
	273	{
	274	struct saa7110 *decoder = to_saa7110(sd);
	275
	276	if (decoder->norm != std) {
	277	decoder->norm = std;
	278	/saa7110_write(sd, 0x06, 0x03);/
	279	if (std & V4L2_STD_NTSC) {
	280	saa7110_write(sd, 0x0D, 0x86);
	281	saa7110_write(sd, 0x0F, 0x50);
	282	saa7110_write(sd, 0x11, 0x2C);
	283	/saa7110_write(sd, 0x2E, 0x81);/
	284	v4l2_dbg(1, debug, sd, "switched to NTSC\n");
	285	} else if (std & V4L2_STD_PAL) {
	286	saa7110_write(sd, 0x0D, 0x86);
	287	saa7110_write(sd, 0x0F, 0x10);
	288	saa7110_write(sd, 0x11, 0x59);
	289	/saa7110_write(sd, 0x2E, 0x9A);/
	290	v4l2_dbg(1, debug, sd, "switched to PAL\n");
	291	} else if (std & V4L2_STD_SECAM) {
	292	saa7110_write(sd, 0x0D, 0x87);
	293	saa7110_write(sd, 0x0F, 0x10);
	294	saa7110_write(sd, 0x11, 0x59);
	295	/saa7110_write(sd, 0x2E, 0x9A);/
	296	v4l2_dbg(1, debug, sd, "switched to SECAM\n");
	297	} else {
	298	return -EINVAL;
	299	}
	300	}
	301	return 0;
	302	}
1da177e4	303
5325b427 HV	304	static int saa7110_s_routing(struct v4l2_subdev *sd,
5325b427 HV	305	u32 input, u32 output, u32 config)
e7946844 HV	306	{
	307	struct saa7110 *decoder = to_saa7110(sd);
	308
f14a2972	309	if (input >= SAA7110_MAX_INPUT) {
5325b427	310	v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
e7946844	311	return -EINVAL;
85ede69f	312	}
5325b427 HV	313	if (decoder->input != input) {
	314	saa7110_selmux(sd, input);
	315	v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
e7946844 HV	316	}
	317	return 0;
	318	}
1da177e4	319
e7946844 HV	320	static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
	321	{
	322	struct saa7110 *decoder = to_saa7110(sd);
	323
	324	if (decoder->enable != enable) {
	325	decoder->enable = enable;
	326	saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
	327	v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
107063c6	328	}
e7946844 HV	329	return 0;
e7946844 HV	330	}
107063c6	331
4744ebf6	332	static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl)
e7946844	333	{
4744ebf6	334	struct v4l2_subdev *sd = to_sd(ctrl);
e7946844 HV	335
	336	switch (ctrl->id) {
	337	case V4L2_CID_BRIGHTNESS:
4744ebf6	338	saa7110_write(sd, 0x19, ctrl->val);
1da177e4	339	break;
e7946844	340	case V4L2_CID_CONTRAST:
4744ebf6	341	saa7110_write(sd, 0x13, ctrl->val);
107063c6	342	break;
e7946844	343	case V4L2_CID_SATURATION:
4744ebf6	344	saa7110_write(sd, 0x12, ctrl->val);
1da177e4	345	break;
e7946844	346	case V4L2_CID_HUE:
4744ebf6	347	saa7110_write(sd, 0x07, ctrl->val);
1da177e4	348	break;
1da177e4	349	default:
1da177e4 LT	350	return -EINVAL;
	351	}
	352	return 0;
	353	}
	354
e7946844 HV	355	static int saa7110_g_chip_ident(struct v4l2_subdev sd, struct v4l2_dbg_chip_ident chip)
	356	{
	357	struct i2c_client *client = v4l2_get_subdevdata(sd);
	358
	359	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0);
	360	}
	361
1da177e4 LT	362	/* ----------------------------------------------------------------------- */
1da177e4 LT	363
4744ebf6 HV	364	static const struct v4l2_ctrl_ops saa7110_ctrl_ops = {
	365	.s_ctrl = saa7110_s_ctrl,
	366	};
	367
e7946844 HV	368	static const struct v4l2_subdev_core_ops saa7110_core_ops = {
e7946844 HV	369	.g_chip_ident = saa7110_g_chip_ident,
4744ebf6 HV	370	.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
	371	.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
	372	.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
	373	.g_ctrl = v4l2_subdev_g_ctrl,
	374	.s_ctrl = v4l2_subdev_s_ctrl,
	375	.queryctrl = v4l2_subdev_queryctrl,
	376	.querymenu = v4l2_subdev_querymenu,
e7946844 HV	377	.s_std = saa7110_s_std,
e7946844 HV	378	};
1da177e4	379
e7946844 HV	380	static const struct v4l2_subdev_video_ops saa7110_video_ops = {
	381	.s_routing = saa7110_s_routing,
	382	.s_stream = saa7110_s_stream,
	383	.querystd = saa7110_querystd,
	384	.g_input_status = saa7110_g_input_status,
	385	};
	386
	387	static const struct v4l2_subdev_ops saa7110_ops = {
	388	.core = &saa7110_core_ops,
e7946844 HV	389	.video = &saa7110_video_ops,
	390	};
	391
	392	/* ----------------------------------------------------------------------- */
1da177e4	393
85ede69f HV	394	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	395	const struct i2c_device_id *id)
1da177e4	396	{
1da177e4	397	struct saa7110 *decoder;
e7946844	398	struct v4l2_subdev *sd;
1da177e4 LT	399	int rv;
1da177e4 LT	400
1da177e4	401	/* Check if the adapter supports the needed features */
85ede69f HV	402	if (!i2c_check_functionality(client->adapter,
	403	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	404	return -ENODEV;
1da177e4	405
85ede69f HV	406	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	407	client->addr << 1, client->adapter->name);
1da177e4	408
7408187d	409	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
85ede69f	410	if (!decoder)
1da177e4	411	return -ENOMEM;
e7946844 HV	412	sd = &decoder->sd;
e7946844 HV	413	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
107063c6	414	decoder->norm = V4L2_STD_PAL;
1da177e4 LT	415	decoder->input = 0;
1da177e4 LT	416	decoder->enable = 1;
4744ebf6 HV	417	v4l2_ctrl_handler_init(&decoder->hdl, 2);
	418	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	419	V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
	420	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	421	V4L2_CID_CONTRAST, 0, 127, 1, 64);
	422	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	423	V4L2_CID_SATURATION, 0, 127, 1, 64);
	424	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	425	V4L2_CID_HUE, -128, 127, 1, 0);
	426	sd->ctrl_handler = &decoder->hdl;
	427	if (decoder->hdl.error) {
	428	int err = decoder->hdl.error;
	429
	430	v4l2_ctrl_handler_free(&decoder->hdl);
	431	kfree(decoder);
	432	return err;
	433	}
	434	v4l2_ctrl_handler_setup(&decoder->hdl);
	435
1da177e4	436	init_waitqueue_head(&decoder->wq);
1da177e4	437
e7946844	438	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
85ede69f	439	if (rv < 0) {
e7946844	440	v4l2_dbg(1, debug, sd, "init status %d\n", rv);
85ede69f	441	} else {
1da177e4	442	int ver, status;
e7946844 HV	443	saa7110_write(sd, 0x21, 0x10);
	444	saa7110_write(sd, 0x0e, 0x18);
	445	saa7110_write(sd, 0x0D, 0x04);
	446	ver = saa7110_read(sd);
	447	saa7110_write(sd, 0x0D, 0x06);
	448	/mdelay(150);/
	449	status = saa7110_read(sd);
	450	v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
85ede69f	451	ver, status);
e7946844 HV	452	saa7110_write(sd, 0x0D, 0x86);
	453	saa7110_write(sd, 0x0F, 0x10);
	454	saa7110_write(sd, 0x11, 0x59);
	455	/saa7110_write(sd, 0x2E, 0x9A);/
1da177e4 LT	456	}
1da177e4 LT	457
e7946844 HV	458	/saa7110_selmux(sd,0);/
e7946844 HV	459	/determine_norm(sd);/
1da177e4 LT	460	/* setup and implicit mode 0 select has been performed */
	461
	462	return 0;
	463	}
	464
85ede69f	465	static int saa7110_remove(struct i2c_client *client)
1da177e4	466	{
e7946844	467	struct v4l2_subdev *sd = i2c_get_clientdata(client);
4744ebf6	468	struct saa7110 *decoder = to_saa7110(sd);
e7946844 HV	469
e7946844 HV	470	v4l2_device_unregister_subdev(sd);
4744ebf6 HV	471	v4l2_ctrl_handler_free(&decoder->hdl);
4744ebf6 HV	472	kfree(decoder);
1da177e4 LT	473	return 0;
	474	}
	475
	476	/* ----------------------------------------------------------------------- */
	477
85ede69f HV	478	static const struct i2c_device_id saa7110_id[] = {
	479	{ "saa7110", 0 },
	480	{ }
	481	};
	482	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	483
ff6e5422 HV	484	static struct i2c_driver saa7110_driver = {
	485	.driver = {
	486	.owner = THIS_MODULE,
	487	.name = "saa7110",
	488	},
	489	.probe = saa7110_probe,
	490	.remove = saa7110_remove,
	491	.id_table = saa7110_id,
1da177e4	492	};
ff6e5422	493
c6e8d86f	494	module_i2c_driver(saa7110_driver);